I was looking at your HW specs. Seems like a fairly new computer, but something that did a huge difference for me, was blowing out dust from the fan outtake. I wasn't able to see the dust visually. You only notice it when you blow it. If you want to try this, please make sure you open the back first, so the dust has somewhere to go. May be worth a shot anyway.
Have you looked at if the CPU itself is prone to high differences in temperature during different loads? Your differences seem quite abnormal. Also, have you googled on if the linux kernel is not handling that CPU well. This bug report was initially about graphic card temperatures, which is separated from CPU temperatures. The two are unlikely to be related. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/1166916 Title: temperature overheating of cpu and radeon in 12.10 and above Status in “xserver-xorg-video-ati” package in Ubuntu: New Bug description: 13.04 Ubuntustudio 64 bit under moderate load temperature is around 81c under high load (playing video inside a virtualbox) temperature hit 94c.... at which point I turned it off I have tested this with all 3 of the radeon drivers, with no significant difference. The radeon temp is always about 2-3 degrees hotter than the rest, so suspect that is souce of problem. 10.10 does not have this problem at all 12.04 runs 5-10 degrees hotter on average than does 10.10 but starting with 12.10 the temperature gets unusably hot ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: linux-image-3.8.0-14-lowlatency 3.8.0-14.9 ProcVersionSignature: Ubuntu 3.8.0-14.9-lowlatency 3.8.4 Uname: Linux 3.8.0-14-lowlatency x86_64 ApportVersion: 2.9.2-0ubuntu5 Architecture: amd64 CasperVersion: 1.330 Date: Tue Apr 9 17:11:07 2013 LiveMediaBuild: Ubuntu-Studio 13.04 "Raring Ringtail" - Alpha amd64 (20130403) MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-lowlatency UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1166916/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
